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# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: t -*-
# vi: set ft=python sts=4 ts=4 sw=4 noet :
# This file is part of Fail2Ban.
#
# Fail2Ban is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# Fail2Ban is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Fail2Ban; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# Author: Cyril Jaquier
#
# $Revision$
__author__ = "Cyril Jaquier"
__version__ = "$Revision$"
__date__ = "$Date$"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import unittest
import time
from server.filterpoll import FilterPoll
from server.filter import FileFilter, DNSUtils
from server.failmanager import FailManager
from server.failmanager import FailManagerEmpty
class IgnoreIP(unittest.TestCase):
def setUp(self):
"""Call before every test case."""
self.__filter = FileFilter(None)
def tearDown(self):
"""Call after every test case."""
def testIgnoreIPOK(self):
ipList = "127.0.0.1", "192.168.0.1", "255.255.255.255", "99.99.99.99"
for ip in ipList:
self.__filter.addIgnoreIP(ip)
self.assertTrue(self.__filter.inIgnoreIPList(ip))
# Test DNS
self.__filter.addIgnoreIP("www.epfl.ch")
self.assertTrue(self.__filter.inIgnoreIPList("128.178.50.12"))
def testIgnoreIPNOK(self):
ipList = "", "999.999.999.999", "abcdef", "192.168.0."
for ip in ipList:
self.__filter.addIgnoreIP(ip)
self.assertFalse(self.__filter.inIgnoreIPList(ip))
# Test DNS
self.__filter.addIgnoreIP("www.epfl.ch")
self.assertFalse(self.__filter.inIgnoreIPList("127.177.50.10"))
class LogFile(unittest.TestCase):
FILENAME = "testcases/files/testcase01.log"
def setUp(self):
"""Call before every test case."""
self.__filter = FilterPoll(None)
self.__filter.addLogPath(LogFile.FILENAME)
def tearDown(self):
"""Call after every test case."""
#def testOpen(self):
# self.__filter.openLogFile(LogFile.FILENAME)
def testIsModified(self):
self.assertTrue(self.__filter.isModified(LogFile.FILENAME))
class GetFailures(unittest.TestCase):
FILENAME_01 = "testcases/files/testcase01.log"
FILENAME_02 = "testcases/files/testcase02.log"
FILENAME_03 = "testcases/files/testcase03.log"
FILENAME_04 = "testcases/files/testcase04.log"
def setUp(self):
"""Call before every test case."""
self.__filter = FileFilter(None)
self.__filter.setActive(True)
# TODO Test this
#self.__filter.setTimeRegex("\S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}")
#self.__filter.setTimePattern("%b %d %H:%M:%S")
def tearDown(self):
"""Call after every test case."""
def _assertEqualEntries(self, found, output):
"""Little helper to unify comparisons with the target entries
and report helpful failure reports instead of millions of seconds ;)
"""
self.assertEqual(found[:2], output[:2])
found_time, output_time = \
time.localtime(found[2]),\
time.localtime(output[2])
self.assertEqual(found_time, output_time)
if len(found) > 3: # match matches
self.assertEqual(found[3], output[3])
def testGetFailures01(self):
output = ('193.168.0.128', 3, 1124013599.0,
['Aug 14 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128\n']*3)
self.__filter.addLogPath(GetFailures.FILENAME_01)
self.__filter.addFailRegex("(?:(?:Authentication failure|Failed [-/\w+]+) for(?: [iI](?:llegal|nvalid) user)?|[Ii](?:llegal|nvalid) user|ROOT LOGIN REFUSED) .*(?: from|FROM) <HOST>")
self.__filter.getFailures(GetFailures.FILENAME_01)
ticket = self.__filter.failManager.toBan()
attempts = ticket.getAttempt()
date = ticket.getTime()
ip = ticket.getIP()
matches = ticket.getMatches()
found = (ip, attempts, date, matches)
self._assertEqualEntries(found, output)
def testGetFailures02(self):
output = ('141.3.81.106', 4, 1124013539.0,
['Aug 14 11:%d:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:141.3.81.106 port 51332 ssh2\n'
% m for m in 53, 54, 57, 58])
self.__filter.addLogPath(GetFailures.FILENAME_02)
self.__filter.addFailRegex("Failed .* from <HOST>")
self.__filter.getFailures(GetFailures.FILENAME_02)
ticket = self.__filter.failManager.toBan()
attempts = ticket.getAttempt()
date = ticket.getTime()
ip = ticket.getIP()
matches = ticket.getMatches()
found = (ip, attempts, date, matches)
self._assertEqualEntries(found, output)
def testGetFailures03(self):
output = ('203.162.223.135', 6, 1124013544.0)
self.__filter.addLogPath(GetFailures.FILENAME_03)
self.__filter.addFailRegex("error,relay=<HOST>,.*550 User unknown")
self.__filter.getFailures(GetFailures.FILENAME_03)
ticket = self.__filter.failManager.toBan()
attempts = ticket.getAttempt()
date = ticket.getTime()
ip = ticket.getIP()
found = (ip, attempts, date)
self._assertEqualEntries(found, output)
def testGetFailures04(self):
output = [('212.41.96.186', 4, 1124013600.0),
('212.41.96.185', 4, 1124013598.0)]
self.__filter.addLogPath(GetFailures.FILENAME_04)
self.__filter.addFailRegex("Invalid user .* <HOST>")
self.__filter.getFailures(GetFailures.FILENAME_04)
try:
for i in range(2):
ticket = self.__filter.failManager.toBan()
attempts = ticket.getAttempt()
date = ticket.getTime()
ip = ticket.getIP()
found = (ip, attempts, date)
self.assertEqual(found, output[i])
except FailManagerEmpty:
pass
def testGetFailuresMultiRegex(self):
output = ('141.3.81.106', 8, 1124013541.0)
self.__filter.addLogPath(GetFailures.FILENAME_02)
self.__filter.addFailRegex("Failed .* from <HOST>")
self.__filter.addFailRegex("Accepted .* from <HOST>")
self.__filter.getFailures(GetFailures.FILENAME_02)
ticket = self.__filter.failManager.toBan()
attempts = ticket.getAttempt()
date = ticket.getTime()
ip = ticket.getIP()
found = (ip, attempts, date)
self._assertEqualEntries(found, output)
def testGetFailuresIgnoreRegex(self):
output = ('141.3.81.106', 8, 1124013541.0)
self.__filter.addLogPath(GetFailures.FILENAME_02)
self.__filter.addFailRegex("Failed .* from <HOST>")
self.__filter.addFailRegex("Accepted .* from <HOST>")
self.__filter.addIgnoreRegex("for roehl")
self.__filter.getFailures(GetFailures.FILENAME_02)
self.assertRaises(FailManagerEmpty, self.__filter.failManager.toBan)
class DNSUtilsTests(unittest.TestCase):
def testTextToIp(self):
bogus = [
'doh1.2.3.4.buga.xxxxx.yyy',
'1.2.3.4.buga.xxxxx.yyy',
]
"""Really bogus addresses which should have no matches"""
for s in bogus:
res = DNSUtils.textToIp(s)
self.assertEqual(res, [])
import os, tempfile
class FileFilterTests(unittest.TestCase):
def testRecycledLog(self):
class RecycledLog:
"""Helper class to immitate few kinds of logs
physical file gets removed in __del__
"""
def __init__(self, filename, n=None):
"""
Parameters
----------
filename : str
Name of the file
n : int or None
if None, no recycling happning so it 'looks' like a
regular log which just appends new lines (although
technically different since it gets rewritten
entirely upon each new entry)
"""
self.filename = filename
self.n = n
self._entries = []
# initiate the file so it is not empty
open(self.filename, 'w').close()
def __del__(self):
os.remove(self.filename)
def write(self, s):
self._entries += [s]
if self.n:
# and now 'shrink' it if necessary
self._entries = self._entries[max(0, len(self._entries)-self.n):]
# rewrite the file with "new" entries
open(self.filename, 'w').write('\n'.join(self._entries)+'\n')
#logfile = '/tmp/1.dat'
_, logfile = tempfile.mkstemp('-f2b-test')
for n in (0, 3): # shrink file and don't
log = RecycledLog(logfile, n)
ff = FilterPoll(None)
ff.addLogPath(logfile)
ff.setActive(True)
ff.setFindTime(3600*24*365*20) # long enough to run it simply via nosetests
# ATM without adjusting MyTime
ff.setMaxRetry(2) # fail on having 2
ff.addFailRegex("FAILED <HOST>$")
for i in range(10):
log.write("Aug 14 11:59:59 FAILED 192.0.43.%d" % i)
ff.getFailures(logfile)
ff_status = ff.status()
assert(ff_status[0][0] == 'Currently failed')
assert(ff_status[1][0] == 'Total failed')
self.assertEqual(ff_status[0][1], ff_status[1][1])
#print ff_status
del log
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